Artist's impression of supernova SN 1993J, located in the galaxy M81. Image Credit: NASA, ESA, G. Bacon (STScI)
Supernovas take place about once every second all over the cosmos, detectog one is still a challenge to astrophysicists. Many of these appear very faint due to distance. This creates more troubles for astronomers to detect and solve the different puzzles of star explosion. The study was issued in the July 20 edition of the Astrophysical Journal.